Column Name                  Type          Column Definition 
RecordID                     int           Unique identifier of the record 
MAK                          bigint        Melissa Address Key (MAK) is a random ten-digit number assigned to unique addresses worldwide with no duplicates 
BaseMAK                      bigint        Unique ten-digit ID that uniquely identifies a base address 
Address                      varchar(50)   Address of the record 
Suite                        varchar(20)   Suite of the address 
City                         varchar(35)   Name of the city as it should appear as part of the address 
State                        varchar(2)    Two-character state, province, or territory abbreviation  
HouseNumber                  varchar(10)   House number of the address 
StreetPreDirection           varchar(5)    Street predirection of the address 
StreetName                   varchar(40)   Street name of the address 
StreetSuffix                 varchar(10)   Street suffix of the address 
StreetPostDirection          varchar(5)    Street postdirection of the address 
SuiteType                    varchar(10)   Suite type of the address 
SuiteNumber                  varchar(10)   Suite number of the address 
ZipCode                      varchar(5)    Five-digit postal code used by the United States Postal Service 
ZipCodePlus4                 varchar(4)    Four-digit code that represents deliver routes within delivery areas (extends the five-digit zip) 
Latitude                     decimal(18,6) Latitude of the address 
Longitude                    decimal(18,6) Longitude of the address 
CensusKey                    varchar(16)   Fifteen or sixteen-digit key that represents: State (2) + County (3) + Tract (6) + Block Group Number (4) + Optional Block Suffix (1). The suffix is used to indicate if any changes were made the to Block Group Number   
CensusKeyDecennial           varchar(15)   Fifteen-digit key that represents: State (2) + County (3) + Tract (6) + Block Group Number (4) 
GeoLevel                     varchar(12)   Defines how accurate and specific the latitude and longitude are 
PlaceCode                    varchar(7)    Seven-digit identifier for location and administrative unit: State (2) + PlaceCode (5) 
ElevationInMeters            decimal(6,2) Elevation of the address in meters 